Insect and disease problems occur throughout the landscape, and can be a confusing topic. When you need suggestions for treatment, or help with identification, this is the place to start.
Topic Topic Starter Replies Views Last Post Seiridium canker? Darbo 0 914 Friday August 01, 2008 08:08 AM is this the start of oak wilt? <mega> 1 924 Sunday May 20, 2007 11:29 PM by Russ Carlson I think my Cleveland Pear is dying! Help <Lindsay> 0 1911 Sunday September 10, 2006 11:33 AM Crimson Frost Birch Problems <Needhelp> 0 1438 Sunday August 20, 2006 10:50 AM Liquid Amber Trees - Die-back Jocular 2 6561 Wednesday August 02, 2006 09:56 AM by Bill some brown leaves on post 150 yr. post oak Darbo 2 1217 Tuesday June 13, 2006 09:59 PM by Darbo Healing Birch? <Anna K.> 2 1030 Tuesday June 06, 2006 11:32 AM by <Anna> My cleveland pear needs help! mddjb 1 9185 Monday June 05, 2006 11:55 AM by Russ Carlson Birch Tree Leaf Disease <fred> 1 6500 Tuesday May 30, 2006 09:46 PM by Russ Carlson Inkberry chlorosis Ron 1 1519 Saturday May 13, 2006 06:22 PM by Newt Save my Birch tree !!! <azzomum> 1 1282 Friday May 12, 2006 02:48 PM by <azzomum> purple leaf plum tree kleighnjosiesmom 1 2089 Thursday April 27, 2006 12:46 PM by Russ Carlson Maple Transplant-Desperate for answers <kathysmith30> 0 958 Monday April 17, 2006 11:19 AM best application <bruno> 0 826 Friday April 14, 2006 12:19 AM Cottonwood borers Nate - Austin 1 1522 Thursday February 16, 2006 10:03 PM by <Jeff> Leopard moth Zeuzera pyrina <Russ Carlson> 10 3309 Saturday November 19, 2005 01:03 AM by <Mahmoud sadjadi> maple leaves w black spots and wilting <Christopher Huff> 3 7159 Saturday September 24, 2005 05:06 PM by <gailgorman> Dying Ficus nitida trees! TCochran 3 7087 Wednesday September 14, 2005 04:17 AM by Newt Pear tree ... to die or not to die.. daary 1 1858 Wednesday September 14, 2005 04:06 AM by Newt cleveland pear tree <steph> 0 5936 Sunday August 07, 2005 09:41 PM Pythium fungus <TCochran> 0 1204 Saturday August 06, 2005 10:53 PM River Birch - yellowish leaves and dropping <RAP - Southern MN> 3 2662 Saturday August 06, 2005 10:37 AM by <Woodsie> Brown patches on Autumn Blaze Maple <Clare> 3 7563 Thursday July 28, 2005 10:51 PM by <Teri> Galls on white pine <Ric> 0 1178 Friday July 15, 2005 09:12 AM squirrel damage to Japanese Zelkova <Mark Goodwin> 6 4095 Tuesday July 05, 2005 09:05 AM by <Briansmaple> Washington Hawthorne insects & disease <Carol> 6 9900 Thursday June 30, 2005 04:13 PM by <K Ann> Autumn Blaze Maple <Mike Tillaart> 2 3240 Sunday June 19, 2005 08:27 PM by <Aceraceae> Armillatox <Guy> 4 2511 Friday June 10, 2005 03:15 PM by <Ernest Parkin> Japanese Maple leaf damage at ends <Robert> 3 7426 Thursday May 19, 2005 09:30 PM by <Rose Kline> Emerald Ash Borer <AResearch> 0 1228 Monday May 09, 2005 02:44 PM possible human infection of tree parasite <Kaye> 5 5698 Sunday May 01, 2005 05:58 PM by <jenny> Very good web site for indentifying diseases H. Angers 1 2017 Monday April 18, 2005 05:51 PM by <delores> pro carpenter ants? <Ryan> 1 1815 Friday July 30, 2004 10:01 PM by Russ Carlson Oxyporus populinus jezz 1 1608 Saturday March 06, 2004 04:42 PM by Jerry Color Signature of Disease? <Mark> 4 1673 Monday November 17, 2003 10:55 PM by <Mark> Bacterial canker in Norway maples John Paul Sanborn 2 1600 Sunday November 16, 2003 05:38 PM by joe fungi <Paul> 1 1603 Friday October 10, 2003 10:16 PM by Russ Carlson Bleeding from pruning cuts on Eastern White Pine <Rick Lipsitt> 2 3671 Sunday September 07, 2003 09:13 PM by <Rick Lipsitt> Inonotus, Phellinus pini... <Dan> 0 1321 Friday August 29, 2003 04:31 AM Deodar, dying <Peter Torres> 9 2916 Monday August 25, 2003 04:57 PM by <Mark> HELP!!!carpenter ant nest/gaping hole <doreen> 2 2197 Friday July 25, 2003 08:13 AM by <Billy Davis> Bradford Pear-holes in trunk jswank 2 5608 Monday June 30, 2003 02:51 PM by Russ Carlson oak petiole borer Russ Carlson 10 2662 Monday June 30, 2003 02:49 PM by <Scott> 2000 Montezuma cypresses 5km along river, dying <Pierre T Marchebout Urrea> 4 1753 Tuesday June 24, 2003 05:07 PM by <Pierre Marchebout> birch tree disease <wilf smith> 5 4799 Monday June 02, 2003 04:16 AM by <Steve Hayes> edges of leaves on bradford pear turning brown <APRIL> 0 1910 Saturday May 31, 2003 11:49 AM white pine disease <Peter Larson> 3 1966 Friday May 23, 2003 12:00 PM by <Mark Goodwin> Patterns of butt decay in sycamores <Mark Goodwin> 4 1755 Wednesday May 21, 2003 07:01 AM by <Jerry> Lost 6 Maple trees that were 10 yrs old HELP <Larry> 3 1813 Sunday May 18, 2003 08:20 AM by <Mark Goodwin> 5 YR CEDAR HEDGE DYING <Robert Cousins> 1 1980 Sunday May 18, 2003 01:59 AM by <Mark Goodwin>
